Electric-car heater.



Patented llll. 22, 190i.

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m: mums PETER 00.. moron? ilNITE STATES PATENT OFFICE.

EDWARD E. GOLD, OF NEW YORK, N. Y.

ELECTRIC-CAR HEATER.

SPECIFICATION forming part of Letters Patent No. 666,418, dated January22, 1901.

Application filed August 1, 1900. Serial No. 25,496. dlo model.)

To all whom, it may concern;

Be it known that I, EDWARD E. GOLD, a citizen of the United States ofAmerica, residing in the borough of Manhattan, city of New York, in theState of New York, have invented certain new and useful Improvements inElectric-Gar Heaters, of which the following is a specification.

This invention relates to electric-car heaters, and has for its objectto construct an electric car heater with a back or casing formed ofsheet metal that is su'fficiently durable to withstand the strainincidental to railway use, that is simple in construction, and that caneasily be assembled.

In the accompanying drawings, Figure 1 represents in perspective a rearelevation of my improved electric-car heater. Fig. 2 represents atransverse section of the same on the line 2 2 of Fig. 1. Fig. 3 is adetail view representing a horizontal section on the line 3 3 of Fig. 1.

The frame of the heater consists of a back or casing 1, of sheet metal,and afront plate 2. The face-plate is provided with a number ofperforations 3, which permit free circulation of the air into and fromthe casing. The sides of the casing are bent to form outwardlyprojectingside flanges 4, that have their outer edges folded and are provided withopenings or perforations 5 to receive rivets or screws 6, that engage inor through the base-plate and secure the casing thereto. A plurality oflongitudinal corrugations or depressions are formed or struck up in thecasing, preferably lengthwise thereof,that projectinwardly from thesurface of the casing to form internal ribs 7. One or more brackets orclamps 8 are secured to the casing adjacent to the base-plate to hold alining 9, of asbestos or similar material, that conforms to the shape ofthe easing and engages with the internal ribs or corrugations. The endsof the casing are folded inward to form retaining-flanges 10, that holdthe end pieces 11 of the heater against outward displacement and stiffenthe casing, so as to prevent same from being bent out of shape. Said endpieces are held apart by a plurality of rods 12, which support a numberof resistance-coils 13, that are connected in any preferred manner witha suitable source or sources of electrical energy.

By means of this construction a heater can be made that is simple tomanufacture, ea y to assemble, and that possesses great durability. Thecas ing is made from a single piece of sheet metal, the corrugationsbeing struck up therein and the flanges being formed by bending the endsand sides thereof. In this way a considerable saving of metal iseffected and the weight of the heater is reduced toa minimum. The heateris thus made available in many cases where a heavy heater could not beused, and the use of a larger number of heaters is permitted in caseswhere the total weight of the conveyance is limited to a certain amount.The asbestos lining is secured to each side of the casing lengthwisethereof and is held out of contact therewith by the corrugations, sothat a dead-air space is formed between the lining and the casing, whichassists in preventing radiation of the heat through the lining. Whatheat passes through the lining and the air-space to the casing isquickly radiated by the casing instead of being retained thereby, aswhen the casing is of different material, such as cast-iron or Wood. Theeffective heating capacity of the heater thus becomes available as soonas the heater is put in operation.

I claim as my invention 1. In an electric-car heater, the combination ofa perforated metal front plate, a sheetmetal casing having corrugationsstruck up therein to form internal ribs, and having its side edgesturned outwardly to form securingflauges and its ends turned inwardly toform retaining-flanges, means for securing said flanges to the frontplate, end pieces held against outward displacement by saidretaining-flanges, and supporting-rods arranged between the end pieces,substantially as described.

2. In an electric-car heater, the combination of a perforated metalfrontplate, asheetmetal casing having corrugations therein to forminternal ribs, and having its side edges turned outwardly to formsecuring-flanges and its ends turned inwardly to form retaining-flanges,means for attaching said securing-flanges to the frontplates, end piecesheld against outward displacement by said retaining-flanges, and anasbestos lining cor- I in the presence of two witnesses, this 26th dayresponding in section with said casing; and seof July, 1900. cured tothe side edges thereof, said lining contacting with the internal ribs toform a dead-air space between said lining and cas- \Vitnesses: ing',substantially as described. L. M. WILSON,

In testimony whereof Isign this application, ROSWELL S. NICHOLS.

ED WARD E. GOLD.

